Sheet-metal form for concrete walls.



P. D; SKAHEN.

SHEET METAL FORM FOR CONCRETE WALLS.

APPLICATION FILED APR.15|19l5.'

1 246,337. Patented Nov. 13, 1917.

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SHEET METAL FORM FOR CONCRETE WALLS. APPLICATION FILED APR. 15. 19:5.

7. Patented Nov. 13, 1917.

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PATRICK n snnnnn, or svnircusn, new YORK.

' s nner-METAL roan: i on cononisrn WALLS.

To all whom it may concern:

Be it known that I, Pnfrizioii D. SKAHEN, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Sheet-Metal Form for Concrete Walls, of which the following is a specification.

This invention has for its object a sheet metal form for concrete walls, which is particularly simple in construction, efficient in use and which can be readily erected and knocked down; and the invention consists in the combinations and constructions hereinafter set forth and claimed v In describing this invention, referenceis had to the accompanying drawings, in which like characters designate" corresponding parts in all the views.

Figure 1 is a plan view, partly in section, of one embodiment of this form showing various contours and shapes of concrete walls that can be formed therewith.

Fig. 2 is an elevation partly in section, looking to the left in Fig. 1.

Fig. 3 is a fragmentaryview showing a corner post in section and the contiguous ends of two form elements or planks, one of said elements being in section.

Fig. 1- is an end elevation of one of the form elements or planks.

Fig. 5 is a modified form of one of the form elements.

Fig. 6 is a modified form of another of the form elements.

This form for concrete walls comprises corner posts, intermediate posts and elements or planks between the posts.

Each form usually consists of inner and outer parallel walls between which the concrete or cement is poured. The corner posts consist of inner and outer pieces or strips 1, 2, the margins of the flanges of which on the sides of the angle, are spaced apart to form channels 3. The post also may include a central or intermediate spacing piece 4 arranged between the pieces 1, 2, at the angle thereof and serving to space apart the pieces 1, 2, the edges of the piece 4 terminating short of the edges of the strips 1, 2 so that the margins of the latter form said channels 3.

The intermediate posts also include inner .and outer flat pieces 5, 6 having their side Specification of Letters Patent. t nted 13 19 7, application filed April 15, 1915. sci-mine. 21,491.

spacing pieces 8 similar to the pieces 4 of the corner posts. But as seen in Fig. 5, the intermediate portion. 9 of the outer piece, as 6, may be de ressed and the inner piece 5 secured directly thereto. The outerpiece 6 is here shown as bent up into the form of a channel iron, the channel 10 of which faces outwardly andthe web of which is opposed to the piece 5 to form the sides of the channels 7. The intermediate posts may be stifiened by angle irons l0 fitted in the channel 10 between and near the ends of the posts.

All the pieces of thecorner posts and the intermediate posts are secured together by welding. I

Each form element or plank 11 consists of a strip 12 bent up in the form of a channel and tongues 13. at the ends of the strip extending beyond the ends of the channel and continuing in the direction of the web of the strip, the tongues being unprovided with the side flanges such as form the sides of the channel of the strip of the plank. Said tongues'13 are out of alinement with the web of the strip 12 and are designed to enter the channels 3 of thecorner posts and the channels 7 of the intermediate posts, and are located far enough out of alinement with the web of thestrip to permit the outer face of the web, which face engages the cement or concrete, to come flush with the adjoining faces of the corner postand of the intermediate post. Hence, the surface of the cement wall will be even when the form is removed.

As here shown, portions of the tongues fit into the channel of the strip 12 and lie against the interior face of the web or back of the strip 12, and are formed With angular flanges or bases 1-1 which fit between the side flanges of the strip 12.

The strips 12 are stiffened so as not to bulge at their intermediate portions by braces 15 formed of angle iron. These braces may be arranged as shown in Figs. 2 and 1, as extending lengthwise of the planks, or as shown in Fig. 6, as extending obiiquely crosswise thereof within the channe In use, it will be understood that the planks are arranged one above the other.

This form may also include planks designed to be arranged in vertical position and having lengthwise flanges designed to fit into the channels 3 of the corner posts. These vertical planks are particularly useful in connection with the corner posts, to form pilasters.

16 designates the vertical planks, each of which includes a body plate 17 and angle plates 18 mounted on the margins of the plate 17 and having flanges 19 extending beyond the side edges of the plate 17 in order to enter the channels 3 of the corner posts.

This form can be adjusted to various thicknesses and contours of Walls, and the form Walls, When spaced the desired distance apart, are held by suitable tie pieces 20 connected to the intermediate posts and planks.

The planks 11 are held in position by tie pieces 21 connected to the ends of the planks on one side of a corner post and extending past said post and connected to the ends of the planks on the other side of the post. These tie pieces are usually Wire cables.

lVhat I claim is 1. A sheet metal plank for concrete forms comprising a strip bent in the form of a channel and a tongue projecting beyond the end of said channel and being secured directly to the Web at the bottom of the channel and extending from the Web at the bottom of the channel in the direction of said Web, substantially as and for the purpose set forth.

2. A sheet metal plank for concrete forms comprising a strip bent in the form of a channel and a tongue set in the channel and projecting beyond the end of the channel in the direction of the Web of the channel, substantially as and for the purpose set forth.

3. A sheet metal plank for concrete forms comprising a strip bent in the form of a channel, and a tongue set in the channel and projecting beyond the end of the channel in the direction of the Web of the channel, the tongue lying against the inner face of the Web, substantially as and for the purpose described.

4. A sheet metal plank for concrete forms comprising a strip bent in the form of a channel, and atongue set in the channel and projecting beyond the end of the channel in the direction of the Web of the channel, the tongue lying against the inner face of the Web, and having an angular flange fitting between the side flanges of the channel, substantially as and for the purpose specified.

5. A sheet metal concrete form element comprising an elongated strip bent in the form of a channel and angle iron bracing strips located in the channel and secured to the Web of the channel, substantially as and for the purpose specified.

6. A sheet metal concrete form element comprising a flat body strip and angle strips mounted on the margins of the body strip and arranged with flanges thereof projecting beyond the edges of the margins of said body strip forming tongues, one of the sides of the angle strip lying flat against the Web of the body strip, substantially as and for the purpose set forth.

In testimony whereof, I have hereunto signed my name in the presence of tWo attesting Witnesses, at Syracuse, in the county of Onondaga, and State of New York, this 3rd day of November, 1914.

PATRICK D. SKAHEN.

Vitnesses S. DAVIS, J. GLAZIER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

